KR20240006874A - Multi-tone effect with Linen-like Polyester Composite Yarn And Method preparing same - Google Patents

Abstract

In the present invention, a low melting point polyester yarn containing a cationically dyeable polyester yarn (TTD) and a low melting point polyester resin is twisted while heating to partially fuse the cationically dyeable polyester yarn and the low melting point polyester yarn. This relates to a linen-like polyester composite yarn that is formed and has a soft and sharp texture like natural linen and has a multi-tone effect through cationic dyeing tack yarn and a multi-tone effect like natural linen.

Description

Linen-like polyester composite yarn with multi-tone effect and method for manufacturing same {Multi-tone effect with Linen-like Polyester Composite Yarn And Method preparing same}

The present invention relates to a linen-like polyester composite yarn with a multi-tone effect. The present invention relates to a linen-like polyester composite yarn with a multi-tone effect, which has a surface texture that is sharp and soft like linen and has a surface shape similar to natural linen, and a linen-like polyester composite yarn with a multi-tone effect. It is about manufacturing method.

Composite yarns, made by plying two or more yarns, have been developed through extensive efforts to combine the strengths of synthetic fibers and spun yarns into one yarn.

Conventionally, composite yarns were manufactured by simply twisting filaments of synthetic fibers and spun yarns of natural fibers, but with the gradual development of braiding technology and to meet the diverse needs of consumers, many yarn processing technologies have been developed.

Republic of Korea Patent Publication No. 2001-0063955 discloses a polyester/acetate composite yarn manufactured by air entanglement of acetate yarn with a fineness of 50 to 100 denier and polyester non-uniformly drawn yarn. Korean Patent Publication No. 2006-78217, Japanese Patent Laid-Open No. 1025636, and Japanese Patent Laid-Open No. 11181643 disclose a method of manufacturing polyamide-based composite yarn.

Recently, as products with the same appearance and texture as natural materials such as wool, cotton, and hemp are preferred, many composite yarns that have an appearance and texture similar to natural materials but combine the elasticity and excellent physical properties of synthetic fibers are being developed and commercialized. .

Republic of Korea Patent No. 1981757 is an invention regarding cotton gin composite yarn with excellent elasticity. It discloses a cotton gin composite yarn manufactured by plying fine and effect yarns with different elasticities through air entanglement and then through a false twist process. Registered Patent No. 1855799 The issue relates to wool-like polyester composite yarn, which is a polyester composite yarn that supplies polyester POY filament, latent crimp filament, and polyester spun yarn as yarn and interlaces them so that the final manufactured yarn has an appearance similar to wool fiber. Publication Patent No. 2014-0070681 relates to linen-like polyester false twist yarn, which is a linen-like polyester false twist yarn that has good moisture absorption and dissipation properties and provides a cool feeling by processing polyester yarn into fusion false twist yarn under specific conditions. The company has been opened.

As mentioned above, composite yarns that have the appearance and texture of cotton or wool are highly similar to actual natural materials, but linen-like composite yarns can reproduce the unique cool feel of linen to some extent, but are soft and sharp like natural linen. It was insufficient to express texture.

The present invention was invented to solve the problems of the prior art as described above, and is a multi-tone product that can express a soft and sharp texture like natural linen by utilizing cationically dyeable polyester yarn and low melting point polyester yarn. The purpose is to provide an effective linen-like polyester composite yarn.

In addition, the purpose of the present invention is to provide a method for producing a linen-like polyester composite yarn with a multi-tone effect, which can produce a linen-like polyester composite yarn with a multi-tone effect.

In the present invention, a low melting point polyester yarn containing a cationically dyeable polyester yarn (TTD) and a low melting point polyester resin is twisted while heating to partially fuse the cationically dyeable polyester yarn and the low melting point polyester yarn. Provided is a linen-like polyester composite yarn with a multi-tone effect, characterized in that it is formed.

In addition, the low melting point polyester resin provides a linen-like polyester composite yarn with a multi-tone effect, characterized in that the melting point is 150 to 200 ° C. or the softening point is 100 to 130 ° C.

In addition, the heating is a linen-like polyester composite yarn with a multi-tone effect, characterized in that it is heated to a temperature in the range of -20 to +30 ℃ of the melting point of the low melting point polyester resin or +30 to 80 ℃ of the softening point. to provide.

In addition, a linen-like polyester composite yarn with a multi-tone effect is provided, wherein the cationically dyeable polyester tethered yarn (TTD) and the low-melting point polyester yarn are formed at a weight ratio of 7:3 to 9:1.

In addition, the present invention includes a yarn supply step of supplying a low-melting point polyester yarn containing a cationically dyeable polyester tethered yarn (TTD) and a low-melting point polyester resin; And, a blow-twisting step of partially fusing the cationically dyeable polyester tethered yarn (TTD) and the low-melting point polyester yarn by heating the cationically dyeable polyester tethered yarn (TTD) and the low-melting point polyester yarn. Provides a method for manufacturing linen-like polyester composite yarn with a multi-tone effect.

The linen-like polyester composite yarn with the multi-tone effect according to the present invention as described above has the effect of showing a soft and sharp texture like natural linen by partially fusing cationically dyeable polyester yarn and low-melting point polyester yarn while twisting. There is.

In addition, the present invention contains cationically dyeable polyester fiber yarn, which has the effect of having a natural linen-like appearance through a two-tone effect due to a difference in surface thickness and a multi-tone effect of three or more tones due to cationic dyeability.

Figure 1 is a diagram showing a process diagram of a linen-like polyester composite yarn with a multi-tone effect according to the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings attached to the present invention. First of all, it should be noted that among the drawings, identical components or parts are indicated by the same reference numerals whenever possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order to not obscure the gist of the present invention.

As used herein, the terms 'about', 'substantially', etc. are used to mean at or close to the numerical value when manufacturing and material tolerances inherent in the stated meaning are presented, and are used to enhance the understanding of the present invention. Precise or absolute figures are used to assist in preventing unscrupulous infringers from taking unfair advantage of stated disclosures.

The present invention relates to a linen-like polyester composite yarn with a multi-tone effect formed from a cationically dyeable polyester tethered yarn (TTD) and a low-melting point polyester yarn containing a low-melting point polyester resin.

The linen-like polyester composite yarn with a multi-tone effect according to the present invention is manufactured including a yarn supply step and a false twist fusion step as shown in FIG. 1.

The yarn supply step is a step of supplying cationically dyeable polyester yarn (TTD) and low melting point polyester yarn.

The polyester tethered yarn (TTD) is a yarn in which the thick and thin parts of the yarn are repeated to create surface irregularities and a dry touch, and has a texture similar to spun yarn or slub yarn, and has the characteristic of giving a two-tone effect. there is.

The cationically dyeable polyester thread is manufactured from a cationically dyeable polyester resin, and the cationically dyeable polyester resin may be any polyester resin currently manufactured for cationically dyeable.

An example of the cationically saltable polyester resin may be a cationically saltable polyester resin formed by copolymerizing an acid component of terephthalic acid, a diol component of ethylene glycol, and sodium 5-sulfoisophthalate.

The low melting point polyester yarn is a yarn containing a low melting point polyester resin. The low melting point polyester resin is a polyester resin having a melting point lower than the melting point of a typical polyethylene terephthalate resin, which is about 250 to 270°C.

The low-melting point polyester resin preferably has a melting point of 150 to 200°C or a softening point of 100 to 130°C. If the temperature exceeds the above range, processability and physical properties of the composite yarn may deteriorate.

The low melting point polyester yarn is preferably manufactured in a cis-core type. The core part is made of a typical polyester resin containing a polyethylene terephthalate resin with a melting point of 250 to 270°C, and the cis part is made of the low melting point polyester yarn described above. It may be formed from an ester resin.

The low melting point polyester resin is copolymerized by adding isophthalic acid (IPA) as an acidic component during the production of a polyester resin formed of terephthalic acid (TPA) as an acidic component and ethylene glycol as a diol component, or as a diol component with 2- It can be manufactured by copolymerization with the addition of methyl-1,3-propanediol (MPO), and any low melting point polyester resin with a melting point or softening point within the above range can be used in the present invention.

The false melting step is a step of partially fusing the cationically dyeable polyester yarn (TTD) and the low melting point polyester yarn by blow twisting the cationically dyeable polyester yarn (TTD) and the low melting point polyester yarn while heating.

In the false melting step, the heating must be adjusted according to the melting point or softening point of the low melting point polyester resin forming the low melting point polyester yarn. If the temperature during heating is too high, excessive fusion may occur or the low melting point polyester yarn may be damaged. If the shape is not maintained, the appearance and feel of the linen-like polyester composite yarn may deteriorate, and if the temperature is too low, melting may be weak and the formation of the fusion zone may not be smooth.

The heating may be preferably performed at a temperature in the range of -10 to +20°C of the melting point of the low melting point polyester resin or in the range of +30 to 50°C of the softening point.

The cationically dyeable polyester yarn (TTD) and the low melting point polyester yarn are preferably formed in a weight ratio of 7:3 to 9:1. If the content of the cationic dyeable polyester yarn (TTD) is less than 70% by weight, the multi-tone effect and appearance are similar to linen. Sensitivity may disappear, and if the content of fine yarn exceeds 90% by weight, the content of low-melting polyester yarn may become too low and the unique feel of linen may not be expressed.

As described above, linen-like polyester composite yarn with a multi-tone effect, which is manufactured using cationically dyeable polyester yarn (TTD) and low melting point polyester yarn, including the yarn supply stage and the false fusion stage, is cationically dyeable. Polyester tethered yarn and low-melting point polyester yarn are partially fused while twisting to create a soft and shiny texture like natural linen, and the multi-tone effect due to the difference in surface thickness of cationic dyeable polyester tethered yarn and cationic dyeability. Has the same appearance as natural linen.

Below, an example of a method for producing a linen-like polyester composite yarn with a multi-tone effect according to the present invention is shown, but the present invention is not limited to the example.

Example 1 to 4

We supply low melting point polyester yarn (LM PET) containing cationically dyeable polyester tethered yarn (TTD) and low melting point polyester resin with a melting point of 160℃, and partially fuse them by heating and twisting at a twist number of 800T/M. A false fusion step was performed to produce a linen-like polyester composite yarn with a multi-tone effect according to the present invention.

The mixing ratio and heating temperature of cationically dyeable polyester tethered yarn (TTD) and low melting point polyester yarn according to each example are shown in Table 1.

Comparative Example 1

Polyester composite yarn was manufactured in the same manner as in Example 3, but using only low-orientation polyester yarn.

Comparative Example 2

Polyester composite yarn was manufactured in the same manner as in Example 3, but only using polyester tethered yarn (TTD).

The yarn processing fairness of the polyester composite yarn prepared in the Examples and Comparative Examples prepared above was evaluated, and the polyester composite yarn was woven into a plain weave to evaluate the weaving fairness, appearance, feel, and drapability of the fabric, and Table 1 shown in

The yarn processing, weaving process, appearance, feel, and drapability of the fabric were evaluated by five experts and were rated as excellent (◎), excellent (○), average (△), and poor (X).

division Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative example 2 TTD:LM PET ratio 80:20 80:20 80:20 60:40 0 0 Heating temperature℃) 150 190 230 150 230 230 Processing process ○ △ X ○ ○ ○ weaving process ○ △ X ○ △ △ Exterior ○ ○ ○ △ △ △ touch ○ ○ ◎ ◎ X △ Drapability ○ △ X X X X

As shown in Table 1, Examples 1 and 2, which are linen-like polyester composite yarns with a multi-tone effect of the present invention, were evaluated as excellent in all yarn processing, weaving processability, appearance, touch, and drapability of the fabric, but Example 4 and Likewise, if the content of low-melting polyester yarn increases, the drapability may decrease, so it is preferable that the low-melting point polyester yarn is contained in less than 40% by weight.

In addition, if the temperature is too high during heating, the yarn processing and weaving process may be reduced, and the drapability may be reduced. The melting point of the low melting point polyester resin forming the low melting point polyester yarn as in Examples 1 and 2 Heating in the range of -20 to +30°C would be desirable.

In addition, as in Comparative Examples 1 and 2, it can be seen that when a composite yarn is formed only with low-orientation polyester yarn or polyester tack yarn, the feel and drapability are deteriorated.

Claims (5)

It is formed by heating and twisting a low melting point polyester yarn containing a cationically dyeable polyester yarn (TTD) and a low melting point polyester resin, and partially fusing the cationically dyeable polyester yarn and the low melting point polyester yarn. Linen-like polyester composite yarn with a characteristic multi-tone effect.
According to paragraph 1,
The low melting point polyester resin is a linen-like polyester composite yarn with a multi-tone effect, characterized in that the melting point is 150 to 200 ℃ or the softening point is 100 to 130 ℃.
According to paragraph 1,
A linen-like polyester composite yarn with a multi-tone effect, characterized in that the heating is performed at a temperature in the range of -20 to +30 ℃ of the melting point of the low melting point polyester resin or to a temperature in the range of +30 to 80 ℃ of the softening point.
According to paragraph 1,
A linen-like polyester composite yarn with a multi-tone effect, characterized in that the cationically dyeable polyester tethered yarn (TTD) and the low melting point polyester yarn are formed at a weight ratio of 7:3 to 9:1.
A yarn supply step of supplying low-melting point polyester yarn containing cationically dyeable polyester tethered yarn (TTD) and low-melting point polyester resin; and,
A false twist fusion step of partially fusing the cationically dyeable polyester yarn (TTD) and the low melting point polyester yarn by heating the cationically dyeable polyester yarn (TTD) and the low melting point polyester yarn. Method for manufacturing linen-like polyester composite yarn with multi-tone effect.

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